Adjustable guide for molding flasks



May 3, 1932. w. E. SAN'DHAM 1,856,509

ADLUSTABLE GUIDE FOR MOLDING FLASKS Filed Aug. 2, 195o INVENTOR wz rf@ E. .wmv/Mw.

ATTORNEY Patented May 3, 1932 UNTE v-ffi TES WALTER E. SANDHAM, OF LOS ANGELES, CALIFORNIA ADJUSTABLE GUIDE FOR. MOLDING IELASIKS Application filed August 2, 1930. Serial No. 472,712.

This invention is an adjustable guide for molding flasks. v

The general object of the invention is to provide an adjustable device for holding a molding flask together, for molding, in such manner that the flask may be opened with a minimum lift of the cope in order to release the pattern.

A more particularl object is to provide an adjustable guide for engaging a pin on a molding Hash for holding the flask together for molding and in such manner as to enable the guide'to disengage the pin in order to open the flask with a minimum lift of the co e.

ther objects will appear hereinafter.

The invention is illustrated in the annexed drawings which form a part of this specification and in which,

Fig. 1 is a front elevation of my invention shown applied to a molding flask.

Fig. 2 is a side elevation of my invention as shown in Fig. 1.

F ig. 3 is a plan view of my invention as shown in Figs. 1 and 2.

Fig. 4 is a fragmentary horizontal section of the guide taken on line 1v-4 of F 1.

Fig. 5 is a fragmentary vertical section of the guide taken on line 5-5 of Fig. 3.

Corresponding parts are designated by the same reference characters in all the figures.

In the drawings are illustrated a molding flask indicated 1 comprising the usual drag 2 and cope 3. To the outside of the drag 2 is secured the usual pin 4 and on the outside of the cope 3 is mounted my guide 5 for receiving the pin 4.

My guide comprises a base plate 6 and a guide member 7 adjustably mounted on said plate. The base plate 6 is formed with horizontal slots 8 in the corners thereof, through which slats project threaded studs 9 outstanding from the cope 3, said slots permitting the base plate to be adjusted laterally' on said studs. Nuts 10, fitted on the threaded studs 9, engage the base plate 6 to secure it, in the position to which it is laterally adjusted, to the cope 3. The base plate 6 is provided with a pair of vertical slots 11 which are positioned directly in front of a pair of vertical grooves 12 in the outer surface of the cope 3. The guidemember 7 comprises a guide shoe mounting 13 and a guide shoe 14. rEhe guide shoe mounting 13 is formed with a pair of vertical base flanges 15, and a shelf 16 outstanding from said flanges, which flanges are spaced apart to receive the pin 4f and the shoe 14: therebetween. The flanges 15 are each formed With two bolt holes 1? to receive bolts 18 respectively which bolts extend outwardly through the vertical slots 11 in the base plate 6 and through said holes, the heads 19 of said bolts being accommodated by the grooves 12 in the cope and engaging the inner face of the base plate. The bolts 18 are formed with square portions 2O which fit in the base plate slots 11 to prevent the bolts from turning. Nuts 21 screw on the ends of the bolts 18 against the flanges 15 for securing the guide member 7 in any position to which it may be vertically adjusted on the base plate 6, such adjustment being permitted by the slots 11 in which the bolts 18 may be moved e,

and through the aperture 25 in the shoe flange 24 and a nut 27 screws on the upper end of said bolt against said flange, drawing the head of the bolt against the under side of the shelf 16 for securing the shoe 14 on the shelf adjusted to fit the pin 4c properly l to avoid looseness between the shoe and the pin, and to align the pin and guide properly, the shoe being adjustable inwardly and outwardly, with relation to the pin, upon loosening the nut 27, so that the bolt may move inwardly or outwardly in the slot.

By adjusting the guide member 7 to different elevations on the base plate 6, the distance necessary to lift the cope in order to lift the guide 5 of( the upper end of the pin 4 and thereby lift the cope off the drag, may

be varied, or reduced to a minimum, thus greatly facilitating the removal of patterns from the flask.

The lateral adjustment of the guide 5 by y means ofthe slots 8, bolts 9 and nuts 10 and f.

the adjustment of the shoe 14 With relation to the pin 4 provides for accurate alignment of the pin and guide and the cope and drag,

thus enabling the liaskto produce perfect y* v castings.

I claim as my invention:

1. In a molding flask, a pin secured to theV drag, a guide for said pin securedV to the cope, means for adjusting the position ofA ysaid guide to vary the distance necessary to lift the guide oii the pin and the cope off the drag, and means for adjusting the guide into 4alignment With said pin.

2. ln a molding flask, a pin secured tothe .drag,a guide for said pin comprising a base plate and a guide member engaging said pin, said base plate being provided with horizontal slots, bolts in the cope extending through said slots and nuts on said bolts engaging said basey plate for ysecuring the vplate to the co e.

' p ALTER E.' SANDHAM. 

